Re: [Qemu-devel] [PATCH] hw/pl181.c: Add save/load support

[Peter Maydell]

On 20 December 2011 10:55, Avi Kivity <address@hidden> wrote:
> On 12/20/2011 12:01 AM, Peter Maydell wrote:
>> Add save/load support to the PL181.
>>
>> +        VMSTATE_INT32(linux_hack, pl181_state),
>>
>
> Is this real state?

Depends what you mean by "real state". It doesn't necessarily
correspond to a flipflop in the hardware implementation, but
it's definitely state in our implementation. (Conversely,
the hardware implementation has state which our s/w one does
not, most notably we don't use the command and data state
machine approach the hardware has.)

> Can't it be recovered somehow from other state?

No.

-- PMM